Full Press Smart Watch Men Sports Clock IP68 Waterproof Heart Rate Monitor Smartwatch for IOS Androi worth to buy? Thanks for it if those of you who have purchased Full Press Smart Watch Men Sports Clock IP68 Waterproof Heart Rate Monitor Smartwatch for IOS Androi could share about what you think of the product. I would love any extra info, as it is quite pricey as $71.30 and I just want to know it is good before paying for it.